Finding the Third Proportional to 171,710.50 and 377,678

Step by Step Solution

1. Step 1: Write the proportion equation
   171,710.50 : 377,678 = 377,678 : x
2. Step 2: Convert to fraction form
   171,710.50/377,678 = 377,678/x
3. Step 3: Cross multiply
   171,710.50x = 377,678 × 377,678
4. Step 4: Simplify right side
   171,710.50x = 142,640,671,684
5. Step 5: Solve for x
   x = 142,640,671,684/171,710.50
6. Step 6: Final answer
   x = 830,704.42